package com.xuenci.gulimall.order.web;/*
 *@author:xec
 *@date:2022/5/31  22:39
 */

import com.xuenci.common.exception.NoStockException;
import com.xuenci.gulimall.order.service.OrderService;
import com.xuenci.gulimall.order.vo.OrderConfirmVo;
import com.xuenci.gulimall.order.vo.OrderSubmitVo;
import com.xuenci.gulimall.order.vo.SubmitOrderResponesVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();

        model.addAttribute("orderConfirmData",confirmVo);
        // 展示订单确认的数据
        return "confirm";
    }

    /**
     * 下单功能
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){

        try {
            SubmitOrderResponesVo responesVo = orderService.submitOrder(vo);
            // 下单失败回到订单确认页，重新确认订单信息
            if (responesVo.getCode()==0){
                // 下单成功来到支付选择页
                model.addAttribute("submitOrderResp",responesVo);
                return "pay";
            }else {
                String msg = "下单失败：";
                switch (responesVo.getCode()){
                    case 1:msg += "订单信息过期，请再次刷新提交";break;
                    case 2:msg += "订单商品价格发生变化，请再次刷新提交";break;
                    case 3:msg += "库存锁定失败，商品库存不足";
                }
                redirectAttributes.addFlashAttribute("msg",msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException){
                String message = ((NoStockException)e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
